Imagery is only out of date if something was (de)constructed since the
imagery was collected that would affect how that area is accurately
mapped. Therefore to me it makes more sense to tag the newer objects
rather than entire areas with a specific tag that editors would pick
up and act upon appropriately (highlight, emit a warning when you
change geometry or delete it, something like that)

On Fri, Dec 6, 2013 at 3:41 PM, Chris Lawrence <[email protected]> wrote:
> I believe at some point there was, or at least there was discussion of
> implementing, a way to mark areas where the aerial imagery is out-of-date.
> Unfortunately I'm drawing a blank on any further development from there, but
> that would seem to be the best solution all-around (having cleaned up a
> similar issue in my area a few weeks ago).
>
>
> Chris
>
>
> On Fri, Dec 6, 2013 at 4:51 PM, Richard Welty <[email protected]>
> wrote:
>>
>> i'm thinking maybe we need an agreed upon way of marking these
>> areas so that the usual editors (id, potlatch2, josm) can flag them
>> as places where aerial imagery is out of date.
>>
>> also, Mike N had suggested highway:disused. instead, maybe
>> something like highway:removed=yes would work.
>>
>> i'd recommend highway:removed over highway=removed
>> because some rendering engines will display a line for
>> highway=removed, but ignore highway:removed because
>> they don't recognize the tag. a local mapper here in Albany
>> had added highway=proposed for a few proposals dating
>> back to the 50s and 60s that will never be built.  i changed
>> them to highway=unbuilt, but that didn't make them go
>> away, so they are now all highway:unbuilt=motorway (or
>> whatever.) i left them in so they didn't get put back in using
>> inappropriate tagging.
>>
>> richard
>>
>>
>>
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>>
>
>
>
> --
> Chris Lawrence <[email protected]>
>
> Website: http://www.cnlawrence.com/
>
> _______________________________________________
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>



-- 
Martijn van Exel
President, US Chapter
OpenStreetMap
http://openstreetmap.us/
http://osm.org/

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